Carbureter.



PATENTBD APR. 16, 1907.

v w. E. .HALLETjI'.

OARBURETER.

APPLICATION FILED APR. 23. 1906.

w/T/vEvsEs 1 INVENTORY g lLL/AM-EHALQ 7'7- y u.) Mud-i 'reter.

UNITED STATES PATENT enric WILLIAM'E. HALL'E'IT, or HILLSDALE, MICHIGAN.

' CARBURETER.

Specification of Letters Patent. Application filed April 23,1906. Serial No. 313,339.

To aZw/wm, zl'tmrty concern.-

Be it known that I, WILLIAM E. HALLETT, a citizen of the United States of America, residing at l-lill sdale, in V and State of Michigan, have invented certain new and useful Improvements in Carbureters, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to carbureters for explosion-engines, and consists particularly in a novel and useful construction and arrangement of parts, as will be more fully hereinafter described, and particularly pointed out in the claims. g

In the drawings, Figure 1 shows a longitudinal central section through the carbu- Fig. 2 is a view in elevation of the airinlet end, and Fig. 3 is a view in elevation of the outlet end,.of the carbureten- A is a hollow casing forming a preferably cylindrical passage A, through which passes the air-current induced by the suction-stroke of the engine in the direction of the arrow shown in Fig. 1.

B is the gasolene-nozzle, projecting into the air-passage and preferably provided with a nipple B for connectionwith a suitable floatchamber or other means for maintaining a constant fuel-feed. The end I) of the nozzle is preferably provided with a plane surface to form a seat for the block-valve C, and the upward movement of the valve is limited by an adjustable stop K, passingthrough the wall of the casing and having a screi thread ed engagement therewith. For holding the stop in any desired position of adjustment I preferably provide a spring A", secured to the casing and engaging the milled head K of the stop, as shown. However, it is obvious that asuitable j am-nut may be used for this purpose, if desired.

A lug D is arranged in the casing adjacent to the nozzle, and to this lug is SGGULMLby .means of a screw (1, the member D, having Between the fur its upper end bifurcated.

is pivoted one end cations of the member 1) of the angled or inverted Lsha ed lever E on the pin '(Z, and the other end of the lever en gages the block-valveC, the end of the lever being bifurcated and the central portion of the block preferably being reduced to fit between the furcations where it is pivoted on the pin L.

On the lever E, I arrange a disk J of restricted area, but sulliciently large to be moved to rock the lever by the impinging Patented April 16, 1907 thereon of the air-current when the engine is running under its own power. With this disk of the proper size, the size being determined by the bore and the strokeof the engine, it will not restrict the air-passage sufficiently to throttle the engine, but when the engine is being started'the air-current will not be suflicient to move the disk and rock the lever to lift the valve 0. For starting the engine I provide a screwthreaded rod M, passing through the wall of the casing and engaging an arm H, projectingfrom the leveralined with and opposed to the lever-arm Thus by screwing down the rod H the valve which carries the valve.

will be lifted to allow the flow of suflieient gasolene to form theproper mixture to start the engine.

I preferably arrange the valve-carrying arm of the lever horizontal and the leverstein vertical in order to permit the valve block to be seated and held to its seat by gravity, thus obviating the necessity for a sprmg.

Near the inlet end of the casing is a transverse slot N, in which is inserted a slide-valve N, and for holding this slide in the desired position of adjustment I preferably provide a thumb-screw O, passing tl'irough a slot 0 in the slide and engaging a lug O, projecting from the casing.

By arranging the carbureter as shown and described the air is taken directly across the gasolene-nozzle when the valve is lifted, and the meeting faces of the valve-block and nozzle being plane and the block being pivoted, a perfect seating of the valve is assured. Another advantage of this construction is that the valve will not rebound fromits seat and permit leakage or flooding.

What 1 claim as my invention 1s 1. In a carbureter, the combination with a hollow casing forming an "air-passage and a gasolene-nozzle pro ecting into said passage,

in the path of the air-current of a lever pivoted ad acent to said nozzle, a disk on said lever in path of the air-current in said passage, a projection on said lever extending over said'nozzle and a valve pivoted 'on said projection, for the purpose described.

2. In acarbureter, the combination with a hollow casing and a gasolene-nozzle projecting therein, having a plane surface on its end of apivoted block arranged to seat on said plane surface, for the purpose described.

- valve-seat, of a pivoted block-valve arranged ,to seat on said nozzle and means for autoto seat on said nozzle,

- matic means 3. In acarbureter, the combination witha hollow casing and a gasolene-nozzle projecting therein having a plane surface forming a matically raising said block, for the purpose described.

p 4. In a carburetei', the combination with'a hollow casing and a asolene-nozzle-projecting' therein, of a bloc pivoted and arranged automatic means for raising said block, and means for positively raising said block, said means being adjustable and self-sustaining in all positions of adjustment for the purpose described. 5. In a carbureter, the combination with a hollow casing and a gasolene-nozzle pro 1ect' ing therein, of a valve for said nozzle, autolifting and holding said valve in its lifted posi-tion. v

6. In a-carbureter, the combination with a hollow casing forming a passage for the aircurrent and a gasolene-nozzle projecting for lifting said valve and ad iustable self-sustaining means for positively' therein, of an angled lever pivoted adjacent to said nozzle, a valve for said nozzle p voted on said lever whereby the rocking of said lever'will raise said valve, means for automatically rocking saidlever to lift said valve,

said means operating on the passage of a' pre' determined volume ofair through sage, and adjustable means for lifting said valve, for the purpose escribed. 7. In a carbureter, an oil-nozzle having a plane surface said passurface.

ositlvely on its end and a pivotally-supported valve arranged to seat on said. plane 8. In a carbureter, the combination with a HoRAoEl/I. JEROME, J. R. HADLEY.

eof I aflix my signatur 

